Forming gerunds when an auxiliary verb is required

Earlier today I started to wonder if parkour could be used as a verb or should be in a gerund phrase (doing parkour).

parkour, from Oxford Dictionaries: "The activity or sport of moving rapidly through an area, typically in an urban environment, negotiating obstacles by running, jumping, and climbing."

The sentence I was trying to create was "He [was doing parkour/parkoured] (something doesn't seem right about this) over a vacant, weathered plinth."

Which lead me to ask, how do you form gerunds with nouns requiring auxiliary verbs(to do + noun) or is this the present progressive aspect of 'to do' and not a gerund at all?

I am completely lost, and don't exactly know how to create a succinct inquiry for google. Any information would be greatly appreciated.

in my experience, these types of activities that are considered as a specific kind of sport/activity usually come with a verb that implies "doing/performing" something. e.g. doing yoga, playing football, etc.

however, you also see examples like: meditating (performing meditation), wrestling, swimming, etc.

it seems the general rule of thumb is that if something would be easy enough to pronounce with an "ing" suffix (i.e, not too difficult to pronounce or ridiculous-sounding), then it gets popular as people tend to use it to save energy while speaking and keep things short. and when it gets too popular, the dictionaries have to accept it too.